18 torre mayor - seismic dampers for the high rise buildings

8/12/2019 18 Torre Mayor - Seismic Dampers for the High Rise Buildings

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SEISMIC DAMPERS FOR THE HIGH RISE BUILDINGSby

Sandeep Donald Shah

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www.aylo!de%#'n.#n

INTRODUCTION

Damper is an ele&en wh#$h $an be added o a %y%e& o p!o"#de (o!$e% wh#$h a!e !e%#%#"e o &o#on)

h*% p!o"#d#n' a &ean% o( ene!'y d#%%#pa#on. A%%*n' ha h#% wo!+#n' de(#n##on w#ll %*((#$e (o!

'ene!al *%e) he ne, a!ea o( #ne!e% #% o 'ene!ally de%$!#be he (*n$#onal o*p* o( a da&pe!. The$on$ep o( added-on da&pe!% w#h#n a %!*$*!e a%%*&e% ha %o&e o( he ene!'y #np* o he %!*$*!e

(!o& a !an%#en #.e. ea!h*a+e) h*!!#$ane e$. w#ll be ab%o!bed) no by he %!*$*!e #%el() b* !ahe! by

%*pple&enal da&p#n' ele&en%. An #deal#/ed %*pple&enal da&pe! wo*ld be o( a (o!& %*$h ha he

(o!$e be#n' p!od*$ed by he da&pe! #% o( %*$h a &a'n#*de and o$$*!% a %*$h a #&e ha he da&pe!(o!$e% do no #n$!ea%e o"e!all %!e%% #n he %!*$*!e. P!ope!ly #&ple&ened) an #deal da&pe! %ho*ld be

able o %#&*laneo*%ly !ed*$e boh %!e%% and de(le$#on #n he %!*$*!e. Typ#$ally) add##on o( 01-023

added (l*#d da&p#n' o a b*#ld#n' %!*$*!e #n$!ea%ed #% ea!h*a+e !e%#%an$e by a (a$o! o( 4 o 5)$o&pa!ed o ha o( he %a&e %!*$*!e w#ho* Fl*#d 6#%$o*% Da&pe!%. Mo% #&po!anly) he

pe!(o!&an$e #&p!o"e&en #% oba#ned w#ho* #n$!ea%#n' he %!e%% o! de(le$#on #n he %!*$*!e. Th#%

ha% $a*%ed &*$h o( he #ne!e% #n (l*#d da&pe!% (o! %!*$*!al en'#nee!#n' *%e.

GENERALIZED EFFECTS OF ADDED DAMPING

The &o% $on"en#en and $o&&on (*n$#onal o*p* e*a#on (o! a da&pe! $o&e% (!o& $la%%#$al

%y%e&% heo!y) and #% ha o( he %o-$alled linear o! viscous da&p#n' ele&en7

F8 C6

whe!e F 8 !e%#%#"e (o!$e (!o& he da&p#n' ele&en

C 8 he da&p#n' $on%an6 8 end-o-end "elo$#y a$!o%% he ele&en

D*!#n' he %o-$alled Cold 9a! beween he USA and he So"#e Un#on) e,en%#"e U.S. Go"e!n&en

!e%ea!$h wa% pe!(o!&ed de"elop#n' op#&al o*p* e*a#on% (o! (l*#d da&p#n' de"#$e%. The%e

$o&ponen% we!e hen #&ple&ened w#h#n l#a!y %y%e&% (o! he p*!po%e o( p!oe$#n' %!ae'#$weapon% and he#! ba%e %!*$*!e% a'a#n% n*$lea! aa$+. M*$h o( h#% wo!+ wa% $la%%#(#ed a% l#a!y

%e$!e%) w#h "#!*ally noh#n' be#n' p*bl#%hed. 9hen he Cold 9a! ended #n :;;1) a !e%!*$*!#n'

pe!#od be'an (o! U.S. l#a!y and de(en%e $on!a$o!%. One o( he o*$o&e% wa% ha he da&p#n'
http://www.taylordevicesindia.com/http://www.taylordesign.in/http://www.taylordesign.in/http://www.taylordevicesindia.com/


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:1 p#e$e% o( :111 onne% (o!$e da&pe!

01 p#e$e% o( 211 onne% (o!$e da&pe!

:11 p#e$e% o( :11 onne% (o!$e da&pe!) e$.

The h#!d %ep #n he de%#'n and #&ple&ena#on p!o$e%% op#/e% he pe!(o!&an$e o( he #nd#"#d*al

da&pe!% w#h#n he %!*$*!e by "a!y#n' he da&p#n' $oe((#$#en% and e,ponen%. Fo! he $a%e o( he

To!!e Mayo! P!o


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The *%e o( (l*#d da&pe!% on he To!!e Mayo! P!o

18 torre mayor - seismic dampers for the high rise buildings

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